The Alternative Minimum Tax, also known as the AMT, is a portion of the U.S. tax code that affects high-earning individuals who lower their tax payments through deductions. Want to know how it’s calculated? Salman Khan of the Khan Academy demonstrates.

Throughout the history of free markets, traders have made money through arbitrage, a tactic that takes advantage of price differences to make risk-free profits. Salman Khan of the Khan Academy describes how arbitrage works in a simple example.

Arbitrage is a way to make risk-free profits by taking advantage of a market’s price differences. Salman Khan of the Khan Academy shows two examples of using arbitrage in futures contracts, and he identifies important information you should know if you try this type of transaction.

When you see a futures curve trending downward, it’s possible you’re observing a market in backwardation. The inverse of contango, backwardation occurs when the futures price for a given date falls below the expected value

There are many ways a company can be valued, but one important distinction to make is between its value on paper and the value determined by the market. This video follows from the previous series and outlines two hypothetical companies and how their accounting and valuations are created. Khan of the Khan Academy clarifies the difference between market value and book value.